# SDR HYIA20260430001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 27, 2026
- Submitted: April 30, 2026
- Operation: Air carrier
- Aircraft: [N411CA](https://openairdocs.org/aircraft/N411CA), registered now
- Make and model: Tecnam P2012
- Aircraft serial: 008US
- Aircraft time: 3,352 hours, 3,698 cycles
- Engine: Lyc TEO540C1A
- Engine time: 3,826 hours, 4,294 cycles
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder
- Part number: 16A3020001
- Part serial: 12248565100
- Condition: Failed Insp
- Location: Engine
- Part time: 1,632 hours, 1,880 cycles
- Component: Engine, Lyc, TEO540C1A
- Stage of operation: CR
- How discovered: O
- Nature of condition: K
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HYIA20260430001

## Discrepancy

CREW REPORTED THE RIGHT ENGINE HAD AN OIL LEAK. MAINTENANCE INSPECTED THE ENGINE, BORESCOPED THE CYLINDERS AND FOUND THE #5 CYLINDER TO HAVE EXCESSIVE OIL POOLING AND PITTING ON THE EXHAUST VALVE. THE CYLINDER WAS REPLACED WITH NO FURTHER DEFECTS NOTED.

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